Aura 2 Es (Cloudflare Workers AI)

Aura-2 is a context-aware text-to-speech (TTS) model that applies natural pacing, expressiveness, and fillers based on the context of the provided text. The quality of your text input directly impacts the naturalness of the audio output.

Provider: All Deepgram models | Cloudflare Workers AI

API Endpoint

https://api.cloudflare.com/client/v4/accounts/{account_id}/ai/v1/chat/completions

Quick Start (Python)

Install: pip install openai

import os

from openai import OpenAI

account_id = os.environ["CLOUDFLARE_ACCOUNT_ID"]

client = OpenAI(
    api_key=os.environ["CLOUDFLARE_API_TOKEN"],
    base_url=f"https://api.cloudflare.com/client/v4/accounts/{account_id}/ai/v1",
)

response = client.chat.completions.create(
    model="@cf/deepgram/aura-2-es",
    messages=[
        {"role": "user", "content": "Hello, how are you?"},
    ],
    max_tokens=1024,
)

print(response.choices[0].message.content)

Additional examples: Basic invoke, REST API (any task)

Supported Parameters

Parameter	Type	Description
max_tokens	integer	Maximum tokens to generate. (≥1)
temperature	float	Controls randomness. Supported range varies by model. (≥0)
stream	boolean	Stream response chunks as they are generated. Default: false.

Feature Guides

OpenAI Compatibility

Call text generation and embedding models with OpenAI-compatible client libraries using the account-scoped Workers AI base URL.

Documentation

REST API

Run any Workers AI model, including image, speech, and embedding models, through the account-scoped /ai/run endpoint.

Documentation

Model Catalog

List available models, tasks, and per-model properties with the Workers AI models search API.

Documentation